c++

please show step by step using //comments.

Laboratory 7 - Task1 Rectangle Width:int Height:int Sat_values(int,int):void Area():int GetWidth()int GatHeight():int According to the main() function and the output given below.create 'Rectangle class and add a friend function called 'duplicate that will multiply the private data members (width and height) by 2. void main() { Sample output: Chectar ; rect.set_values (2,3); cout